Rob was last linked to Rita Ora, a 22-year-old British singer. She has not commented about his remarks, which spurred the phrase "Rita Whora" to trend on Twitter.

Rob, meanwhile, continued his rant in the afternoon.

"When a woman cheats on you with one man I can live with that. People make mistakes, trust me. I have forgiven numerous times..." he said. "But when a woman disrespects herself by messing with more than 20 men all while being in a relationship with a Faithful man..."

"I just don't get how a woman can do that to her body," he added. "And your career hasn't even launched yet. I don't put up with sloppiness. LOYALTY. This is a lesson to all the young women out there to not have unprotected sex with multiple men especially while in a relationship. RESPECT THY SELF!"

Think I'm done with the basics. Now time to go get a shave and go beast it in the gym. #APL," he concluded.

UPDATE on December 4: Rob Kardashian Tweeted: "Just so we clear I never once mentioned 'Rita Ora' in any of my tweets or even used the word 'whore' and I never would. I Respect Women. ... I speak truth. I'm a very Real dude and everything I say I mean... But never called anyone specific a whore and said any names. You all did."